Home / 12,140,104.80-18,210,157.20-9,429,755.70

Finding the Fourth Proportional to 12,140,104.80, 18,210,157.20 and 9,429,755.70

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Solution

The fourth proportional to 12,140,104.80, 18,210,157.20 and 9,429,755.70 is: 14,144,633.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,140,104.80 : 18,210,157.20 = 9,429,755.70 : x
  2. Step 2: Convert to fraction form
    12,140,104.80/18,210,157.20 = 9,429,755.70/x
  3. Step 3: Cross multiply
    12,140,104.80x = 18,210,157.20 × 9,429,755.70
  4. Step 4: Simplify right side
    12,140,104.80x = 171,717,333,654,596.03
  5. Step 5: Solve for x
    x = 171,717,333,654,596.03/12,140,104.80
  6. Step 6: Final answer
    x = 14,144,633.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.